Dimensions Geometry

If the dimensions of a rectangle were each multiplied by a factor of 3, what would be the effect on the new area?

• The new area would be 3 times as large.

• The new area would be 6 times as large.

• The new area would be 9 times as large.

• The new area would be 4 times as large.

Tags

CCSS.7.G.A.1

The area of a trapezoid is 36 in². What is the new area if the height is doubled and the bases decreased by one-third?

• 18

• 24

• 48

• 72

Tags

CCSS.6.G.A.1

The area of a triangle is 24 in². What is the new area of the triangle if the height were doubled and the base increased 5 times?

• 240 in²

• 120 in²

• 480 in²

• 720 in²

Tags

CCSS.7.G.A.1

The area of a rectangle is 15 m². What is the new area of the rectangle formed if the base is multiplied by 5 and the height is decreased by one-third?

• 75 m²

• 25 m²

• 125 m²

• 225 m²

Tags

CCSS.7.G.A.1

The area of a rectangle is 56 ft². What is the new area of the rectangle if the height were halved and the base decreased by one-fourth?

• 8 ft²

• 14 ft²

• 28 ft²

• 7 ft²

The area of a parallelogram is 18 cm². Suppose the height was two times as long and the base did not change. What is the area of the new parallelogram?

• 18 cm²

• 36 cm²

• 72 cm²

• 54 cm²

Tags

CCSS.6.G.A.1

The area of a regular hexagon is 60 in². What is the new area of the regular hexagon if the apothem were 5 times as long and the perimeter was one-half as long?

• 30 in²

• 300 in²

• 150 in²

• 75 in²

The area of a regular pentagon is 42 m². What is the new area of the shape formed if the apothem were tripled and the perimeter were decreased by one-half?

• 21 m²

• 63 m²

• 126 m²

• 28 m²

Tags

CCSS.6.G.A.1

If the dimensions of a rectangle were each multiplied by a factor of 3, what would be the effect on the new Perimeter?

• The new perimeter would be 3 times as large.

• The new perimeter would be 6 times as large.

• The new perimeter would be 9 times as large.

• The new perimeter would be 4 times as large.

Tags

CCSS.7.G.A.1

Check all that are true if the dimensions of a rectangle are all multiplied by 5.

• The new Perimeter would be 5 times as large.

• The new Perimeter would be 25 times as large.

• The new Area would be 5 times as large.

• The new Area would be 25 times as large.

Tags

CCSS.7.G.A.1